Trojan or virus I DON'T KNOW but it's something and I NEED IT GONE!!?

I was away for the weekend and my boyfriend called and said "Baby, I think I gave the comptuer a virus. Something popped up on the bottom right toolbar saying that I needed to click her and download an anti-spyware program and I clicked"

So now I have this little icon on my toolbar saying that my computer is infected and I need to download software to fix my computer. It wont go away. I have downloaded windows defender and have done a full system scan. it said it found 3 trojans and deleted them but the annoying toolbar icon is still there. I want it gone and my computer to stop acting funny. WHat should I do? Are there any "great" free programs to take this annoying thing away??

PS-The icon takes me to a webpage www.spylocked.com

AAAAAAAAAHHHHHHHHHH

Trojan or virus I DON'T KNOW but it's something and I NEED IT GONE!!?norton internet security

SpyLocked and iesafteylist is the latest rogue anti-spyware program to come out from the makers of SpyDawn and Virusburst. SpyLocked is installed by a trojan called Zlob, which attempts to trick you into buying the alleged anti-spyware program. Once you're infected with SpyLocked, a fake security message similar to a Windows notification pops up saying your PC is infected with malware. This SpyLocked message is used to lure you into purchasing, downloading and installing their program to remove the imaginary spyware.